A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

What has 88 keys?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

How many letters are in the alphabet?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

Can you count the number of quadrilaterals in the picture below?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

What is next number in the pattern below:

131 517 192 123 ?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.